#include <bits/stdc++.h>
using namespace std;
#define L for (int i = 0; i < n; i++)
using P=pair<string, string>;
int main() {
    int n;
    cin >> n;
    vector<P> a(n);
    L cin >> a[i].first >> a[i].second;
    sort(a.begin(), a.end());
    L cout << a[i].first << " " << a[i].second << endl;
    return 0;
}